Manley MASTERINGROOM STANDARD REFERENCE PREAMPLIFIER - Manual (Page 7)

REAR PANEL
A IEC MAINS SOCKET Standard IEC mains socket (120/240 VAC)
B FUSE HOLDERS Right & Left channel fuses. Replace with 1A SLO-BLO fuse only.
C VOLTAGE SELECTOR SWITCH Selectable to 110,120 / 220,240 VAC. Set to the proper
voltage you are using.
D OUTPUT (XLR) Left (upper) and Right (lower) output XLR's. Standardly shipped PIN3 hot.
E OUTPUT (RCA) Paralled output to the Left and Right XLR outputs.
F RECORD OUTPUT Buffered record output stage. Set at input line stage level.
G VIDEO INPUT - Video, Line level input
H TUNER INPUT - Tuner, line level input
I TAPE INPUT - Tape, line level input
J DIG INPUT - CD, line level input
K AUX INPUT - AUX, line level input
L MC / MM SELECTOR SWITCH - Select between MC and MM phono stages. Switch up
for MC, down for MM.
M MM INPUT - Moving magnet phono input. Fixed 47 Kohm load is present.
N 5 PIN XLR MC INPUT - MC input balanced. PIN1 - Right common(-), PIN2 - Right
hot(+), Pin3 - ground, Pin4 - Left hot(+), Pin5 - Left common(-)